I've just finished wiring up the driver board (instructions to come), and boy do I wish I had taken some notes the last time I did it. Wound up making some of the same mistakes - aaargh! Nothing that couldn't be fixed, but it wasn't a lot of fun. I'll put more info about those mistakes in the instructions when I finish writing them up over the next few days. Moral of the story: keep a notebook, and keep track of what works and what doesn't.

Wish I knew how to use KiCAD - this thing would be a *lot* easier to put together with a PCB board. Probably save about three hours of work.

Good news is, I'm done with the most difficult bit of soldering and wiring; everything from this point on should be a lot easier (albeit possibly a bit tedious in some spots - doing the same thing over and over again dozens of times).